9 (水)	02:29	07:56	13:07	20:07
	103cm	66cm	101cm	12cm
中潮 出 05:14 入 18:07 出 03:34 入 14:20

那珂湊（茨城）2059年04月9日の10分毎の潮の高低差を確認できます。
また1日の潮の高低差が1番大きい（潮の流れが大きい）時間に「最大潮位差」と明記してます。

時刻	潮位	高低差	各ポイント
4/9 00:00	80.8	↑2.8
4/9 00:10	83.5	↑2.7
4/9 00:20	86.0	↑2.5
4/9 00:30	88.4	↑2.4
4/9 00:40	90.6	↑2.2
4/9 00:50	92.6	↑2.0
4/9 01:00	94.5	↑1.9
4/9 01:10	96.1	↑1.6
4/9 01:20	97.6	↑1.5
4/9 01:30	98.9	↑1.3
4/9 01:40	99.9	↑1.0
4/9 01:50	100.8	↑0.9
4/9 02:00	101.4	↑0.6
4/9 02:10	101.9	↑0.5
4/9 02:20	102.1	↑0.2	満潮
4/9 02:30	102.2	↑0.1
4/9 02:40	102.1	↓-0.1
4/9 02:50	101.7	↓-0.4
4/9 03:00	101.3	↓-0.4
4/9 03:10	100.6	↓-0.7
4/9 03:20	99.8	↓-0.8
4/9 03:30	98.8	↓-1.0
4/9 03:40	97.7	↓-1.1
4/9 03:50	96.5	↓-1.2
4/9 04:00	95.1	↓-1.4
4/9 04:10	93.7	↓-1.4
4/9 04:20	92.1	↓-1.6
4/9 04:30	90.5	↓-1.6
4/9 04:40	88.8	↓-1.7
4/9 04:50	87.1	↓-1.7
4/9 05:00	85.4	↓-1.7
4/9 05:10	83.6	↓-1.8
4/9 05:20	81.9	↓-1.7
4/9 05:30	80.1	↓-1.8
4/9 05:40	78.5	↓-1.6
4/9 05:50	76.8	↓-1.7
4/9 06:00	75.2	↓-1.6
4/9 06:10	73.7	↓-1.5
4/9 06:20	72.3	↓-1.4
4/9 06:30	71.0	↓-1.3
4/9 06:40	69.8	↓-1.2
4/9 06:50	68.7	↓-1.1
4/9 07:00	67.7	↓-1.0
4/9 07:10	67.0	↓-0.7
4/9 07:20	66.3	↓-0.7
4/9 07:30	65.8	↓-0.5
4/9 07:40	65.5	↓-0.3
4/9 07:50	65.3	↓-0.2	干潮
4/9 08:00	65.3	0
4/9 08:10	65.5	↑0.2
4/9 08:20	65.9	↑0.4
4/9 08:30	66.4	↑0.5
4/9 08:40	67.0	↑0.6
4/9 08:50	67.8	↑0.8
4/9 09:00	68.8	↑1.0
4/9 09:10	69.9	↑1.1
4/9 09:20	71.1	↑1.2
4/9 09:30	72.5	↑1.4
4/9 09:40	73.9	↑1.4
4/9 09:50	75.4	↑1.5
4/9 10:00	77.0	↑1.6
4/9 10:10	78.7	↑1.7
4/9 10:20	80.4	↑1.7
4/9 10:30	82.1	↑1.7
4/9 10:40	83.9	↑1.8
4/9 10:50	85.6	↑1.7
4/9 11:00	87.3	↑1.7
4/9 11:10	89.0	↑1.7
4/9 11:20	90.6	↑1.6
4/9 11:30	92.2	↑1.6
4/9 11:40	93.6	↑1.4
4/9 11:50	95.0	↑1.4
4/9 12:00	96.2	↑1.2
4/9 12:10	97.3	↑1.1
4/9 12:20	98.2	↑0.9
4/9 12:30	99.0	↑0.8
4/9 12:40	99.5	↑0.5
4/9 12:50	100.0	↑0.5
4/9 13:00	100.2	↑0.2	満潮
4/9 13:10	100.2	0
4/9 13:20	100.0	↓-0.2
4/9 13:30	99.6	↓-0.4
4/9 13:40	99.0	↓-0.6
4/9 13:50	98.2	↓-0.8
4/9 14:00	97.2	↓-1.0
4/9 14:10	96.0	↓-1.2
4/9 14:20	94.5	↓-1.5
4/9 14:30	92.9	↓-1.6
4/9 14:40	91.0	↓-1.9
4/9 14:50	89.0	↓-2.0
4/9 15:00	86.7	↓-2.3
4/9 15:10	84.3	↓-2.4
4/9 15:20	81.8	↓-2.5
4/9 15:30	79.0	↓-2.8
4/9 15:40	76.2	↓-2.8
4/9 15:50	73.2	↓-3.0
4/9 16:00	70.1	↓-3.1
4/9 16:10	66.9	↓-3.2
4/9 16:20	63.7	↓-3.2
4/9 16:30	60.3	↓-3.4
4/9 16:40	57.0	↓-3.3
4/9 16:50	53.6	↓-3.4
4/9 17:00	50.3	↓-3.3
4/9 17:10	46.9	↓-3.4
4/9 17:20	43.6	↓-3.3
4/9 17:30	40.3	↓-3.3
4/9 17:40	37.2	↓-3.1
4/9 17:50	34.1	↓-3.1
4/9 18:00	31.2	↓-2.9
4/9 18:10	28.3	↓-2.9
4/9 18:20	25.7	↓-2.6
4/9 18:30	23.2	↓-2.5
4/9 18:40	20.9	↓-2.3
4/9 18:50	18.8	↓-2.1
4/9 19:00	17.0	↓-1.8
4/9 19:10	15.3	↓-1.7
4/9 19:20	14.0	↓-1.3
4/9 19:30	12.8	↓-1.2
4/9 19:40	12.0	↓-0.8
4/9 19:50	11.4	↓-0.6
4/9 20:00	11.1	↓-0.3	干潮
4/9 20:10	11.0	↓-0.1
4/9 20:20	11.3	↑0.3
4/9 20:30	11.8	↑0.5
4/9 20:40	12.6	↑0.8
4/9 20:50	13.7	↑1.1
4/9 21:00	15.0	↑1.3
4/9 21:10	16.6	↑1.6
4/9 21:20	18.5	↑1.9
4/9 21:30	20.6	↑2.1
4/9 21:40	22.9	↑2.3
4/9 21:50	25.5	↑2.6
4/9 22:00	28.2	↑2.7
4/9 22:10	31.1	↑2.9
4/9 22:20	34.2	↑3.1
4/9 22:30	37.4	↑3.2
4/9 22:40	40.8	↑3.4
4/9 22:50	44.2	↑3.4
4/9 23:00	47.7	↑3.5
4/9 23:10	51.3	↑3.6
4/9 23:20	54.9	↑3.6
4/9 23:30	58.6	↑3.7	最大潮位差
4/9 23:40	62.2	↑3.6
4/9 23:50	65.8	↑3.6